EP2443528B1 - Device for resetting/cleaning a machining machine - Google Patents
Device for resetting/cleaning a machining machine Download PDFInfo
- Publication number
- EP2443528B1 EP2443528B1 EP10728829.2A EP10728829A EP2443528B1 EP 2443528 B1 EP2443528 B1 EP 2443528B1 EP 10728829 A EP10728829 A EP 10728829A EP 2443528 B1 EP2443528 B1 EP 2443528B1
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- EP
- European Patent Office
- Prior art keywords
- machining
- cleaning
- resetting
- tool
- cleaning fluid
- Prior art date
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- 238000003754 machining Methods 0.000 title claims description 97
- 238000004140 cleaning Methods 0.000 title claims description 88
- 239000012530 fluid Substances 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000002173 cutting fluid Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000000523 sample Substances 0.000 description 34
- 230000014759 maintenance of location Effects 0.000 description 12
- 238000006073 displacement reaction Methods 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 9
- 239000000470 constituent Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241001422033 Thestylus Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/401—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
- G05B19/4015—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes going to a reference at the beginning of machine cycle, e.g. for calibration
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/49—Nc machine tool, till multiple
- G05B2219/49042—Remove chips from probe, tool by blowing them away
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/50—Machine tool, machine tool null till machine tool work handling
- G05B2219/50026—Go to reference plane, cube
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/50—Machine tool, machine tool null till machine tool work handling
- G05B2219/50027—Go to workpiece surface plane and store position
Definitions
- the present invention claims the priority of the French application 0954131 filed on June 18, 2009 .
- the invention relates to the field of devices for resetting the position of a tool carried by a machining machine vis-à-vis a workpiece via this tool, and the cleaning of the machine machining.
- a particular application of the invention relates to the field of CNC machining machines, and in particular that of automatic loading machine line installations comprising several machining machines for machining parts in large series, for example intended for automobile industry.
- Such machining machines generate a large amount of chips during machining operations.
- the chips accumulate at the level of retention zones in the machining machines.
- the different positions of the retention zones depend on many parameters.
- the parameters include the physical form of chips related to the machined material and the type of machining (eg drilling, milling, or tapping), the form of assemblies for loading, clamping or gripping workpieces.
- the accumulation of chips causes problems in the machining quality and reliability of the machining machines, so that manual cleaning operations must be planned. These cleaning operations result in a reduction in production time, a higher cost of labor for installation operators, and a risk of injury to plant operators due to the nature of the chips and the difficulty of access. to the retention zones in the machine.
- the document WO2007 / 116182 describes a device for resetting the absolute origins of a machining machine, in particular a numerically controlled machine, provided with a tool holder adapted to move in the directions respectively perpendicular to the three axes X, Y and Z of the space opposite a workpiece mounted on a door piece fixed relative to the moving tool.
- the device comprises a probe adapted to replace the machining tool of the machine for a movement along the Z axis of the tool holder, this probe being adapted to come into contact with a limited force against a resetting stop fixed on the piece holder and having a planar face extending perpendicular to the direction of the Z axis and two other faces whose planes are inclined on that axis, the normals at these inclined planes delimiting respectively with the direction of the Z axis two perpendicular plane surfaces 1 to one another to materialize the directions of the X and Y axes the document US 5,162,641A also describes such a device.
- the document JP30116899 describes a feeler for improving the efficiency of a machining process and reducing measurement errors to improve machining accuracy by cleaning dirt on the tip of a stylus and a ball probe.
- the probe is provided with a cleaning mechanism for jet cleaning liquid or air and a housing with a brush, both directed towards the tip of the stylus.
- An object of the invention is to provide a resetting and cleaning device remedying at least one of the disadvantages of the prior art, in particular reducing the time required for cleaning the retention zones of the machining machines.
- the invention relates to a device for resetting the position of a machining tool carried by a tool holder of a machining machine vis-à-vis a workpiece through of this tool and of cleaning the machining machine, the device comprising a feeler comprising a body of revolution that can be fixed on the tool holder, said probe being momentarily substituted for the machining tool or permanently fixed on the door tool of the machining machine and implemented independently of the machining tool and the body of revolution having at least one inner conduit leading to at least one ejection orifice of a cleaning fluid, said conduit internal and ejection orifice being arranged for diffusing the cleaning fluid in the direction of at least one constituent element of the machining machine and said inner conduit opening on at least one radial cleaning fluid ejection orifice.
- the inner conduit may result in at least one axial cleaning fluid ejection port.
- the cleaning fluid ejection port may be provided with a nozzle.
- the internal conduit of the probe can be coupled to a hydraulic circuit of the machining machine delivering a cleaning fluid under pressure.
- the cleaning fluid may be cutting fluid or air.
- a workpiece holder supporting the workpiece may comprise a resetting stop of at least one direction of movement of the tool holder vis-à-vis the workpiece.
- the invention relates to a method of resetting the position of a machining tool carried by a tool holder of a machining machine with respect to a workpiece by means of this tool and cleaning of the machining machine, the method comprising the steps of coupling a probe having a body of revolution on the tool holder, said probe being temporarily substituted for the machining tool or fixed permanently on the tool holder of the machining machine and implemented independently of the machining tool and the body of revolution comprising at least one internal conduit coupled to a hydraulic circuit and opening on at least one ejection orifice of a cleaning fluid, for injecting a pressurized cleaning fluid into the internal pipe, and for moving the probe relative to at least one constituent element of the machining machine in a defined path so that the fluid of cleaning either diffused towards the constituent element of the machining machine by at least one radial cleaning fluid ejection orifice.
- the probe can also make at least one point contact with a stop of a piece holder recalier so as to reset at least one direction of movement of the tool holder vis-à-vis the room to machine.
- the invention allows automated cleaning of the retention areas in the machine tool.
- the invention can also allow a registration and a simultaneous cleaning of the machining machine. This results in a shorter cleaning time than when manually performing a cleaning operation by the installation conductors.
- the invention it is no longer necessary for the installation conductors to access the retention zones in the machining machine in order to at least partially eliminate the accumulated chips.
- the invention consequently makes it possible to reduce or even eliminate the risk of injury to the installation conductors.
- the Figure 1 schematically represents a machining machine 1 during a machining operation.
- the Figure 2 schematically represents a machining machine 1 during a resetting and cleaning operation.
- the various essential elements making up the machining machine 1 are shown schematically and are well known in the field of machining machines, so that they will be described only briefly hereinafter.
- the machining machine 1 comprises a frame 2 on which is disposed an assembly 3 supporting a tool holder 4 and a support 11 for a piece holder 12.
- the assembly 3 comprises a Z displacement mechanism 8, an X displacement mechanism 9 and a Y displacement mechanism 10.
- the Z displacement mechanism 8 makes it possible to print to the tool holder 4 a displacement movement according to the direction of a first axis Z.
- the movement mechanism X 9 can print the tool holder 4, a movement movement in the direction of a second axis X.
- the movement mechanism Y 10 can print to the tool holder 4, a movement movement in the direction of a third axis Y.
- the X, Y and Z axes are perpendicular to each other.
- the tool holder 4 comprises a fixing mandrel 5 for a machining tool 6 or a feeler 7.
- the fixing mandrel 5 comprises a conventional barrel mechanism or the like. It can rotate on itself so as to allow the mounting of the machining tool 6 during machining operations or a probe 7 may temporarily substitute in position to the machining tool 6 during the registration and cleaning operations.
- the machining tool 6 may be a drilling or milling spindle.
- the workpiece carrier 12 receives the workpiece 13 so that it is immobilized opposite the machining tool 6.
- the workpiece holder 12 can also be movable.
- the machining tool 6 is for example a spindle designed to produce in the workpiece 13 a blind hole 14, following the positioning of the spindle in front of the workpiece by moving the tool holder 4 according to the directions of the axes X and Y, and the displacement of the rotating spindle R in the direction of the Z axis.
- the machining operation can be performed by moving the workpiece carrier 12 relative to the tool carrier 4.
- Such a machining operation generates chips resulting from the machining of the material composing the workpiece 13. These chips tend to accumulate in various retention zones, for example ZR1, ZR2, ZR3 as illustrated on the Figures 1 and 2 .
- the registration consists of resetting the absolute dimension defining the relative position of the machining tool 6 vis-à-vis the workpiece 13 along the three axes X, Y and Z.
- the resetting operation allows to to ensure that the machining dimensions of the workpiece meet the tolerances imposed for large-scale production, whatever the shifts that may result from said climatic variations during the operation of the machining machine.
- the feeler 7 is momentarily substituted for the machining tool 6.
- the piece holder 12 comprises a stop 15 facing the probe 7.
- the stop 15 has a particular structure for recalibrating the axes.
- the stop has three faces (not shown), each face having a particular angle to reset each corresponding axis.
- each probe contact with the abutment structure closes a measuring loop (not shown) for determining the magnitudes of the offsets in the positioning.
- the CNC machining machine accommodates magnitudes to correct the position of the machining tool relative to the workpiece.
- the probe will be used to perform a cleaning of the various retention zones ZR1, ZR2, ZR3.
- the cleaning operation can be carried out concomitantly with the resetting operation.
- the cleaning operations can be performed according to a specific cycle distinct from the cycle of the registration operations.
- the probe 7 illustrated on the Figures 3 and 4 comprises a body of revolution 16 provided at one end with a connection assembly 17 and at a second end of a sphere 18.
- the connection assembly 17 allows the mounting and the immobilization of the probe 7 on the tool holder 4
- the connection set 17 comprises fastening means the details of which do not affect the characteristics of the device of the invention.
- the sphere 18 is intended to come into contact with the abutment 15.
- the body of revolution 16 comprises at least one internal conduit 19.
- the inner conduit 19 opens at the first end so that it can be coupled to a hydraulic circuit 22 of the machining machine (visible on the Figures 1 and 2 ) when the probe 7 is mounted and immobilized on the tool holder 4.
- the hydraulic circuit 22 can deliver a cleaning fluid 23 in the form of cutting liquid or pressurized air.
- the inner conduit 19 opens substantially at the second end by at least one ejection port 20, 21 of cleaning fluid.
- the inner duct 19 can be divided into a plurality of ducts opening onto the various ejection orifices. The direction of the cleaning fluid is determined by the direction of the inner duct and the position of the ejection port.
- the inner conduit 19 may result in a radial cleaning fluid ejection port 20 imprinting a substantially radial direction D1 to the cleaning fluid jet 24 relative to the axis of the body of revolution RR '. It may also result in an axial cleaning fluid discharge orifice 21 imparting a substantially axial direction D2 to the cleaning fluid jet 25 relative to the axis of the body of revolution RR '.
- the inner duct and the ejection orifice thus allow the cleaning fluid to be diffused towards at least one constituent element of the machining machine when the probe 7 is mounted and immobilized on the tool holder 4 and when the circuit hydraulic 22 delivers a cleaning fluid 23 under pressure.
- the chips accumulated at the various retention zones ZR1, ZR2, ZR3 can be cleaned during the movement of the probe, for example during a registration operation.
- the Figure 4 represents an embodiment of the probe 7 which differs from the embodiment of the Figure 3 in that at least one cleaning fluid ejection port, for example the radial cleaning fluid ejection port 20 is provided with a nozzle 26.
- the resulting pressurized water jet has a shape depending on the shape of the nozzle 26, for example a conical shape having a determined opening angle.
- the Figure 4 also illustrates the modification of the direction of the jet of cleaning fluid 25 by changing the direction of the inner conduit 19 opening on the axial discharge orifice 21.
- the inner conduit has a portion parallel to the axis of the body of revolution RR 'so as to print an axial direction D3 to the jet of cleaning fluid 25 parallel to the axis of the body of revolution RR '.
- FIGS. 3 and 4 show by way of example probes having two ejection orifices 20, 21. Nevertheless, additional ducts opening to additional ejection orifices may be provided in the body of revolution.
- the Figure 5 illustrates the resetting and cleaning process.
- the registration and cleaning cycle occurs at a predetermined frequency during the production of machined parts in large series.
- the frequency can be determined empirically according to the type of workpieces, the constituent material of the workpieces, the amount of chips produced as a function of the production time, the average duration between two re-alignments, etc.
- the method comprises a coupling step 101 of the probe, a step 102 of injecting cleaning fluid into the probe, and a step of moving 103 of the probe along a determined path.
- the probe 7 is fixed on the tool holder 4 and coupled to the hydraulic circuit 22.
- a cleaning fluid is injected under pressure into the internal conduit of the probe 7.
- the probe 7 is moved relative to the constituent elements of the machining machine according to the X, Y and Z directions defining a particular trajectory.
- the tool holder can be rotated R to create a cleaning fluid curtain for scanning a larger volume.
- the trajectory is determined so that the cleaning fluid is diffused towards the entire machining zone and / or more particularly toward the various retention zones ZR1, ZR2, ZR3 (visible on the Figures 1 and 2 ) to remove chips accumulated in these areas. In this way the constituent elements of the machine are cleaned.
- the trajectory can be determined empirically as a function of the retention zones observed as and when the machining machine is used.
- the cleaning and registration steps are distinct, each proceeding from a specific cycle.
- the probe can also make point contacts with the abutment 15 of the piece holder 12. In this way a registration in one or more directions of displacement X, Y and Z of the door tool to the workpiece can be performed simultaneously with the cleaning.
- the numerically controlled machining machine comprises a programmable automaton 30 (visible on the Figures 1 and 2 ) which is programmed to automatically execute an abutment recalibration cycle, a cleaning cycle, or a combined recalibration and cleaning cycle at a defined frequency and a defined path.
- the use of a probe for the joint realization of the registration and cleaning cycles allows on the one hand the use of a single tool thus avoiding a tool change, on the other hand the use of a program common abutment registration and cleaning, and finally the automation of the cleaning operation.
- the probe and the method according to the invention allow the elimination of the cleaning time of the production time machining machines, allowing a gain in operational efficiency of the machining machines. For example, on a machining line comprising 36 machining machines, and a cleaning time of 5 minutes per machine, a total duration of 180 minutes can be saved in favor of production.
- the line operators are no longer subject to manual cleaning machining machines, which improves the productivity gain and reduces or eliminates the risk of injury related to the cleaning operation.
- the invention also applies to a machining machine having a feeler for resetting and cleaning permanently fixed on the tool holder of the machine. In this case the change or the changeover of the machining tool and the probe would not be necessary because the probe would be implemented independently of the machining tool.
- outlet of the hole can be equipped with a specific nozzle for a jet shape adapted to a particular problem.
Description
La présente invention revendique la priorité de la demande française
L'invention se rapporte au domaine des dispositifs pour le recalage de position d'un outil porté par une machine d'usinage vis-à-vis d'une pièce à usiner par l'intermédiaire de cet outil, et le nettoyage de la machine d'usinage. Une application particulière de l'invention vise le domaine des machines d'usinage à commande numérique, et notamment celui des installations de lignes d'usinage à chargement automatique regroupant plusieurs machines d'usinage pour usiner des pièces en grande série, par exemple destinées à l'industrie automobile.The invention relates to the field of devices for resetting the position of a tool carried by a machining machine vis-à-vis a workpiece via this tool, and the cleaning of the machine machining. A particular application of the invention relates to the field of CNC machining machines, and in particular that of automatic loading machine line installations comprising several machining machines for machining parts in large series, for example intended for automobile industry.
De telles machines d'usinage génèrent une importante quantité de copeaux lors des opérations d'usinage. Les copeaux s'accumulent au niveau de zones de rétention dans les machines d'usinage. Les différentes positions des zones de rétention dépendent de nombreux paramètres. Les paramètres sont notamment la forme physique des copeaux liée à la matière usinée et au type d'usinage (par exemple perçage, fraisage, ou taraudage), la forme des montages permettant le chargement, le bridage ou la prise des pièces à usiner. L'accumulation de copeaux entraîne des problèmes de qualité d'usinage et de fiabilité des machines d'usinage, de sorte que des opérations de nettoyage manuelles doivent être planifiées. Ces opérations de nettoyage engendrent une diminution du temps de production, un coût supérieur de main d'oeuvre des conducteurs d'installation, et un risque de blessure des conducteurs d'installation en raison de la nature des copeaux et de la difficulté d'accès aux zones de rétention dans la machine d'usinage.Such machining machines generate a large amount of chips during machining operations. The chips accumulate at the level of retention zones in the machining machines. The different positions of the retention zones depend on many parameters. The parameters include the physical form of chips related to the machined material and the type of machining (eg drilling, milling, or tapping), the form of assemblies for loading, clamping or gripping workpieces. The accumulation of chips causes problems in the machining quality and reliability of the machining machines, so that manual cleaning operations must be planned. These cleaning operations result in a reduction in production time, a higher cost of labor for installation operators, and a risk of injury to plant operators due to the nature of the chips and the difficulty of access. to the retention zones in the machine.
Le document
Le document
Cependant, une telle solution technique n'est pas satisfaisante car le mécanisme de nettoyage monté extérieurement au palpeur est encombrant et ne permet que le nettoyage de la pointe du stylet du palpeur. Il existe un besoin d'amélioration de l'efficacité du nettoyage de l'ensemble des points de rétention des machines d'usinage, c'est-à-dire d'une manière rapide et sure.However, such a technical solution is not satisfactory because the cleaning mechanism mounted externally to the probe is bulky and only allows the cleaning of the stylus tip of the probe. There is a need to improve the cleaning efficiency of all the retention points of the machining machines, that is to say in a fast and safe manner.
Un but de l'invention est de proposer un dispositif de recalage et de nettoyage remédiant à au moins un des inconvénients de l'art antérieur, en particulier réduisant la durée nécessaire au nettoyage des zones de rétention des machines d'usinage.An object of the invention is to provide a resetting and cleaning device remedying at least one of the disadvantages of the prior art, in particular reducing the time required for cleaning the retention zones of the machining machines.
Selon un premier aspect, l'invention concerne un dispositif de recalage de la position d'un outil d'usinage porté par un porte outil d'une machine d'usinage vis-à-vis d'une pièce à usiner par l'intermédiaire de cet outil et de nettoyage de la machine d'usinage, le dispositif comprenant un palpeur comportant un corps de révolution pouvant être fixé sur le porte outil, ledit palpeur étant substitué momentanément à l'outil d'usinage ou fixé à demeure sur le porte outil de la machine d'usinage et mis en oeuvre de manière indépendante de l'outil d'usinage et le corps de révolution comportant au moins un conduit interne débouchant sur au moins un orifice d'éjection d'un fluide de nettoyage, lesdits conduit interne et orifice d'éjection étant agencés pour diffuser le fluide de nettoyage en direction d'au moins un élément constitutif de la machine d'usinage et ledit conduit interne débouchant sur au moins un orifice d'éjection de fluide de nettoyage radial.According to a first aspect, the invention relates to a device for resetting the position of a machining tool carried by a tool holder of a machining machine vis-à-vis a workpiece through of this tool and of cleaning the machining machine, the device comprising a feeler comprising a body of revolution that can be fixed on the tool holder, said probe being momentarily substituted for the machining tool or permanently fixed on the door tool of the machining machine and implemented independently of the machining tool and the body of revolution having at least one inner conduit leading to at least one ejection orifice of a cleaning fluid, said conduit internal and ejection orifice being arranged for diffusing the cleaning fluid in the direction of at least one constituent element of the machining machine and said inner conduit opening on at least one radial cleaning fluid ejection orifice.
Le conduit interne peut déboucher sur au moins un orifice d'éjection de fluide de nettoyage axial.The inner conduit may result in at least one axial cleaning fluid ejection port.
L'orifice d'éjection de fluide de nettoyage peut être muni d'une buse.The cleaning fluid ejection port may be provided with a nozzle.
Le conduit interne du palpeur peut être couplé à un circuit hydraulique de la machine d'usinage délivrant un fluide de nettoyage sous pression.The internal conduit of the probe can be coupled to a hydraulic circuit of the machining machine delivering a cleaning fluid under pressure.
Le fluide de nettoyage peut être du liquide de coupe ou de l'air.The cleaning fluid may be cutting fluid or air.
Un porte pièce supportant la pièce à usiner peut comporter une butée de recalage d'au moins une direction de déplacement du porte outil vis-à-vis de la pièce à usiner.A workpiece holder supporting the workpiece may comprise a resetting stop of at least one direction of movement of the tool holder vis-à-vis the workpiece.
Selon un autre aspect, l'invention concerne un procédé de recalage de position d'un outil d'usinage porté par un porte outil d'une machine d'usinage vis-à-vis d'une pièce à usiner par l'intermédiaire de cet outil et de nettoyage de la machine d'usinage, le procédé comportant les étapes de couplage d'un palpeur comportant un corps de révolution sur le porte outil, ledit palpeur étant substitué momentanément à l'outil d'usinage ou fixé à demeure sur le porte outil de la machine d'usinage et mis en oeuvre de manière indépendante de l'outil d'usinage et le corps de révolution comportant au moins un conduit interne couplé à un circuit hydraulique et débouchant sur au moins un orifice d'éjection d'un fluide de nettoyage, d'injection d'un fluide de nettoyage sous pression dans le conduit interne, et de déplacement du palpeur relativement à au moins un élément constitutif de la machine d'usinage selon une trajectoire définie de sorte que le fluide de nettoyage soit diffusé en direction de l'élément constitutif de la machine d'usinage par au moins un orifice d'éjection de fluide de nettoyage radial.According to another aspect, the invention relates to a method of resetting the position of a machining tool carried by a tool holder of a machining machine with respect to a workpiece by means of this tool and cleaning of the machining machine, the method comprising the steps of coupling a probe having a body of revolution on the tool holder, said probe being temporarily substituted for the machining tool or fixed permanently on the tool holder of the machining machine and implemented independently of the machining tool and the body of revolution comprising at least one internal conduit coupled to a hydraulic circuit and opening on at least one ejection orifice of a cleaning fluid, for injecting a pressurized cleaning fluid into the internal pipe, and for moving the probe relative to at least one constituent element of the machining machine in a defined path so that the fluid of cleaning either diffused towards the constituent element of the machining machine by at least one radial cleaning fluid ejection orifice.
Lors de l'étape de déplacement, le palpeur peut en outre réaliser au moins un contact ponctuel avec une butée de recalage d'un porte pièce de sorte à recaler au moins une direction de déplacement du porte outil vis-à-vis de la pièce à usiner.During the displacement step, the probe can also make at least one point contact with a stop of a piece holder recalier so as to reset at least one direction of movement of the tool holder vis-à-vis the room to machine.
L'invention permet un nettoyage automatisé des zones de rétention dans la machine d'usinage. L'invention peut également permettre un recalage et un nettoyage simultané de la machine d'usinage. Il en résulte une durée de nettoyage plus courte que lors de la réalisation manuelle d'opération de nettoyage par les conducteurs d'installation.The invention allows automated cleaning of the retention areas in the machine tool. The invention can also allow a registration and a simultaneous cleaning of the machining machine. This results in a shorter cleaning time than when manually performing a cleaning operation by the installation conductors.
Egalement, grâce à l'invention, il n'est plus nécessaire que les conducteurs d'installation accèdent aux zones de rétention dans la machine d'usinage pour en éliminer au moins partiellement les copeaux accumulés. L'invention permet en conséquence de réduire, voire de supprimer le risque de blessure des conducteurs d'installation.Also, thanks to the invention, it is no longer necessary for the installation conductors to access the retention zones in the machining machine in order to at least partially eliminate the accumulated chips. The invention consequently makes it possible to reduce or even eliminate the risk of injury to the installation conductors.
D'autres avantages apparaîtront dans la description qui va suivre.Other advantages will appear in the following description.
La présente invention est illustrée par des exemples non limitatifs sur les Figures jointes, dans lesquelles des références identiques indiquent des éléments similaires:
- La
Figure 1 représente schématiquement une machine d'usinage au cours d'une opération d'usinage; - La
Figure 2 représente schématiquement une machine d'usinage au cours d'une opération de recalage et de nettoyage; - Les
Figures 3 et4 sont des vues en perspectives représentants un palpeur pour une machine d'usinage selon différents modes de réalisation de l'invention; et - La
Figure 5 illustre le procédé de recalage et de nettoyage selon l'invention.
- The
Figure 1 schematically represents a machining machine during a machining operation; - The
Figure 2 schematically represents a machining machine during a resetting and cleaning operation; - The
Figures 3 and4 are perspective views representing a feeler for a machining machine according to various embodiments of the invention; and - The
Figure 5 illustrates the method of registration and cleaning according to the invention.
La
Les différents éléments essentiels composant la machine d'usinage 1 sont représentés d'une manière schématique et sont bien connus dans le domaine des machines d'usinage, de sorte qu'ils ne seront décrits que succinctement dans la suite. La machine d'usinage 1 comporte un bâti 2 sur lequel est disposé un ensemble 3 supportant un porte outil 4 et un support 11 pour un porte pièce 12.The various essential elements making up the
L'ensemble 3 comporte un mécanisme de déplacement en Z 8, un mécanisme de déplacement en X 9 et un mécanisme de déplacement en Y 10. Le mécanisme de déplacement en Z 8 permet d'imprimer au porte outil 4, un mouvement de déplacement selon la direction d'un premier axe Z. Le mécanisme de déplacement en X 9 permet d'imprimer au porte outil 4, un mouvement de déplacement selon la direction d'un deuxième axe X. Le mécanisme de déplacement en Y 10 permet d'imprimer au porte outil 4, un mouvement de déplacement selon la direction d'un troisième axe Y. Les axes X, Y et Z sont perpendiculaires entre eux.The
Le porte outil 4 comporte un mandrin de fixation 5 pour un outil d'usinage 6 ou un palpeur 7. Le mandrin de fixation 5 comporte un mécanisme classique à barillet ou analogue. Il peut tourner sur lui-même de manière à permettre le montage de l'outil d'usinage 6 lors des opérations d'usinage ou d'un palpeur 7 susceptible de se substituer momentanément en position à l'outil d'usinage 6 lors des opérations de recalage et nettoyage. A titre d'exemple, l'outil d'usinage 6 peut être une broche de perçage ou de fraisage.The
Le porte pièce 12 reçoit la pièce à usiner 13 de sorte que celle-ci est immobilisée en regard de l'outil d'usinage 6. Le porte pièce 12 peut également être mobile. Lors d'une opération d'usinage telle qu'illustrée à la
Une telle opération d'usinage génère des copeaux résultant de l'usinage de la matière composant la pièce à usiner 13. Ces copeaux ont tendance à s'accumuler dans diverses zones de rétention, à titre d'exemple ZR1, ZR2, ZR3 comme illustrées sur les
Par suite des variations climatiques dans l'environnement de la machine d'usinage 1, il est nécessaire de procéder à intervalles de temps appropriés à des opérations de recalage en butée des origines de la machine d'usinage. Le recalage consiste au recalage de la cote absolue définissant la position relative de l'outil d'usinage 6 vis-à-vis de la pièce à usiner 13 selon les trois axes X, Y et Z. L'opération de recalage permet d'assurer que les cotes d'usinage de la pièce à usiner respectent les tolérances imposées propres à la production en grande série, et ceci quelques soient les décalages pouvant résulter desdites variations climatiques au cours du fonctionnement de la machine d'usinage.As a result of the climatic variations in the environment of the
Lors d'une opération de recalage telle qu'illustrée à la
Avantageusement, selon l'invention le palpeur va être utilisé pour réaliser un nettoyage des diverses zones de rétention ZR1, ZR2, ZR3. Avantageusement, l'opération de nettoyage peut être réalisée concomitamment à l'opération de recalage. Alternativement, les opérations de nettoyage peuvent être réalisées selon un cycle spécifique distinct du cycle des opérations de recalage.Advantageously, according to the invention the probe will be used to perform a cleaning of the various retention zones ZR1, ZR2, ZR3. Advantageously, the cleaning operation can be carried out concomitantly with the resetting operation. Alternatively, the cleaning operations can be performed according to a specific cycle distinct from the cycle of the registration operations.
Le palpeur 7 illustré sur les
Le corps de révolution 16 comporte au moins un conduit interne 19. Le conduit interne 19 débouche au niveau de la première extrémité de sorte qu'il puisse être couplé à un circuit hydraulique 22 de la machine d'usinage (visible sur les
La
Les
La
Selon une première alternative, les étapes de nettoyage et de recalage sont distinctes, chacune procédant d'un cycle spécifique.According to a first alternative, the cleaning and registration steps are distinct, each proceeding from a specific cycle.
Selon une seconde alternative, lors de l'étape de déplacement 103, le palpeur peut également réaliser des contacts ponctuels avec la butée 15 du porte pièce 12. De cette manière un recalage selon une ou plusieurs directions de déplacement X, Y et Z du porte outil vis-à-vis de la pièce à usiner peut être réalisé simultanément au nettoyage.According to a second alternative, during the
Avantageusement, la machine d'usinage à commande numérique comporte un automate programmable 30 (visible sur les
L'utilisation d'un palpeur pour la réalisation conjointe des cycles de recalage et de nettoyage permet d'une part l'utilisation d'un outil unique évitant ainsi un changement d'outil, d'autre part l'utilisation d'un programme commun de recalage en butée et de nettoyage, et enfin l'automatisation de l'opération de nettoyage. Ainsi, le palpeur et le procédé selon l'invention permettent la suppression de la durée de nettoyage des machines d'usinage du temps de production, autorisant un gain en rendement opérationnel des machines d'usinage. A titre d'exemple, sur une ligne d'usinage comportant 36 machines d'usinage, et une durée de nettoyage de 5 minutes par machine, une durée totale de 180 minutes peut être économisée au profit de la production. De plus, les conducteurs de ligne d'usinage ne sont plus astreints aux nettoyages manuels des machines d'usinage, ce qui améliore le gain de productivité et diminue, voire supprime le risque de blessure lié à l'opération de nettoyage.The use of a probe for the joint realization of the registration and cleaning cycles allows on the one hand the use of a single tool thus avoiding a tool change, on the other hand the use of a program common abutment registration and cleaning, and finally the automation of the cleaning operation. Thus, the probe and the method according to the invention allow the elimination of the cleaning time of the production time machining machines, allowing a gain in operational efficiency of the machining machines. For example, on a machining line comprising 36 machining machines, and a cleaning time of 5 minutes per machine, a total duration of 180 minutes can be saved in favor of production. In addition, the line operators are no longer subject to manual cleaning machining machines, which improves the productivity gain and reduces or eliminates the risk of injury related to the cleaning operation.
Bien que la machine d'usinage décrite en relation avec les Figures propose un seul porte outil portant tantôt un outil d'usinage, tantôt un palpeur, l'invention s'applique également à une machine d'usinage comportant un palpeur de recalage et de nettoyage fixé à demeure sur le porte outil de la machine d'usinage. Dans ce cas le changement ou la permutation de l'outil d'usinage et du palpeur ne serait pas nécessaire puisque le palpeur serait mis en oeuvre de manière indépendante de l'outil d'usinage.Although the machining machine described in connection with the Figures proposes a single tool carrier bearing sometimes a machining tool, sometimes a feeler, the invention also applies to a machining machine having a feeler for resetting and cleaning permanently fixed on the tool holder of the machine. In this case the change or the changeover of the machining tool and the probe would not be necessary because the probe would be implemented independently of the machining tool.
A noter également que la sortie du trou peut être équipée d'une buse spécifique permettant une forme de jet adapté à un problème particulier.Also note that the outlet of the hole can be equipped with a specific nozzle for a jet shape adapted to a particular problem.
Claims (9)
- A device for resetting the position of a machining tool (6) supported by a tool holder (4, 5) of a machining machine (1) relative to a part to be machined (13) using this tool (6), and for cleaning the machining machine (1), the device including a feeler (7) comprising a revolution body (16) able to be fixed on the tool holder (4, 5), said feeler (7) being substituted momentarily for the machining tool (6) or fixed permanently on the tool holder (4, 5) of the machining machine (1) and implemented independently of the machining tool (6), the revolution body (16) comprises at least one inner channel (19) leading onto at least one opening (20, 21) for ejecting a cleaning fluid (24, 25), said inner channel (19) and ejection opening (20, 21) being arranged so as to diffuse the cleaning fluid (24, 25) in the direction of at least one element constituting the machining machine (1), said inner channel (19) leading onto at least one radial ejection opening of cleaning fluid (20).
- The resetting and cleaning device according to Claim 1, in which the inner channel (19) leads onto at least one axial ejection opening of cleaning fluid (21).
- The resetting and cleaning device according to one of the preceding claims, in which the opening (20, 21) for ejecting cleaning fluid is provided with a nozzle (26) .
- The resetting and cleaning device according to one of the preceding claims, in which the inner channel (19) of the feeler (7) is coupled to a hydraulic circuit (22) of the machining machine (1) delivering a cleaning fluid (23) under pressure.
- The resetting and cleaning device according to the preceding claim, in which the cleaning fluid (23) is cutting fluid or air.
- The resetting and cleaning device according to one of the preceding claims, in which a part holder (12) supporting the part which is to be machined (13) comprises a resetting stop (15) of at least one direction of movement of the tool holder (X, Y, Z) relative to the part to be machined (13).
- The resetting and cleaning device according to one of the claims, characterized in that the revolution body (16) is provided at one end with a connection assembly (17) and at a second end with a sphere (18), the inner channel (19) leading on substantially at the level of the second end through at least one ejection opening (20, 21).
- A method for resetting the position of a machining tool (6) supported by a tool holder (4, 5) of a machining machine (1) in relation to a part to be machined (13) using this tool (6), and for cleaning the machining machine (1), the method comprises the steps of:- coupling (101) a feeler (7) comprising a revolution body (16) on the tool holder (4, 5), the revolution body (16) comprising at least one inner channel (19) coupled to a hydraulic circuit (22) and leading on to at least one radial cleaning fluid ejection opening (20) of a cleaning fluid, said feeler (7) being substituted momentarily for the machining tool (6) or permanently fixed on the tool holder (4, 5) of the machining machine (1) and implemented independently of the machining tool (6),- injection (102) of a cleaning fluid (23) under pressure in the inner channel (19), and- movement (103) of the feeler (7) relative to at least one element constituting the machining machine (1) along a defined trajectory such that the cleaning fluid is diffused (24, 25) towards the element constituting the machining machine (1) through at least one radial ejection opening (20) of cleaning fluid.
- The resetting and cleaning method according to the preceding claim, in which during the movement step (103), the feeler (7) realizes in addition at least one point contact with a resetting stop (15) of a part holder (12) so as to reset at least one direction of movement (X, Y, Z) of the tool holder (4, 5) relative to the part to be machined (13).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0954131A FR2946909B1 (en) | 2009-06-18 | 2009-06-18 | DEVICE FOR REPAIRING / CLEANING MACHINING MACHINE |
PCT/FR2010/051021 WO2010146266A1 (en) | 2009-06-18 | 2010-05-27 | Device for resetting/cleaning a machining machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2443528A1 EP2443528A1 (en) | 2012-04-25 |
EP2443528B1 true EP2443528B1 (en) | 2019-01-16 |
Family
ID=41693479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10728829.2A Active EP2443528B1 (en) | 2009-06-18 | 2010-05-27 | Device for resetting/cleaning a machining machine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2443528B1 (en) |
CN (1) | CN102804089B (en) |
FR (1) | FR2946909B1 (en) |
WO (1) | WO2010146266A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104813140B (en) * | 2012-11-14 | 2019-05-03 | 瑞尼斯豪公司 | Method and apparatus for passing through machine tool measuring workpiece |
CN113118868A (en) * | 2021-03-10 | 2021-07-16 | 大连交通大学 | Vertical and horizontal machining center spindle temperature compensation measurement general structure and measurement method |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3971114A (en) * | 1972-01-27 | 1976-07-27 | Dudley George M | Machine tool having internally routed cryogenic fluid for cooling interface between cutting edge of tool and workpiece |
JP3016899B2 (en) | 1991-04-08 | 2000-03-06 | 三井精機工業株式会社 | Touch probe |
US5152641A (en) * | 1991-10-15 | 1992-10-06 | Royal Tool, Inc. | Method and apparatus for controlling glass drilling |
US6758640B2 (en) * | 2000-10-11 | 2004-07-06 | Fuji Seiko Limited | Method and apparatus for controlling movement of cutting blade and workpiece |
US7785173B2 (en) * | 2005-07-05 | 2010-08-31 | Supfina Machine Co. | Superfinishing machine and method |
FR2899503B1 (en) * | 2006-04-11 | 2008-12-26 | Process Conception Ing Sa | DEVICE FOR THE STAGING OF A TOOL OF A MACHINING MACHINE AND A WORKPIECE |
-
2009
- 2009-06-18 FR FR0954131A patent/FR2946909B1/en not_active Expired - Fee Related
-
2010
- 2010-05-27 CN CN201080026913.0A patent/CN102804089B/en active Active
- 2010-05-27 WO PCT/FR2010/051021 patent/WO2010146266A1/en active Application Filing
- 2010-05-27 EP EP10728829.2A patent/EP2443528B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
FR2946909A1 (en) | 2010-12-24 |
FR2946909B1 (en) | 2012-06-29 |
CN102804089A (en) | 2012-11-28 |
WO2010146266A1 (en) | 2010-12-23 |
EP2443528A1 (en) | 2012-04-25 |
CN102804089B (en) | 2015-02-11 |
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